Marco A. Villalobos created FLINK-29039:
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Summary: RowData produced by LineBytesInputFormat is reused, but
DeserializationSchemaAdapter#Reader only shallow copies produced data, thus
result will always be the last row value
Key: FLINK-29039
URL: https://issues.apache.org/jira/browse/FLINK-29039
Project: Flink
Issue Type: Bug
Components: Connectors / FileSystem
Affects Versions: 1.15.1
Environment: This issue was discovered on MacOS Big Sur.
Reporter: Marco A. Villalobos
RowData produced by LineBytesInputFormat is reused, but
DeserializationSchemaAdapter#Reader only shallow copies produced data, thus
result will always be the last row value.
Given this program:
{{```java}}
{{{}package mvillalobos.bug;{}}}{{{}import
org.apache.flink.api.common.RuntimeExecutionMode;{}}}
{{import
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;}}
{{import org.apache.flink.table.api.TableResult;}}
{{{}import
org.apache.flink.table.api.bridge.java.StreamTableEnvironment;{}}}{{{}import
static org.apache.flink.table.api.Expressions.$;{}}}{{{}public class
IsThisABatchSQLBug {{}}}{{ public static void main(String[] args) {}}
{{ final StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();}}
{{ env.setRuntimeMode(RuntimeExecutionMode.BATCH);}}
{{ final StreamTableEnvironment tableEnv =
StreamTableEnvironment.create(env);}}
{{ tableEnv.executeSql("CREATE TABLE historical_raw_source_template(\n" +}}
{{ " `file.path` STRING NOT NULL METADATA,\n" +}}
{{ " `file.name` STRING NOT NULL METADATA,\n" +}}
{{ " `file.size` BIGINT NOT NULL METADATA,\n" +}}
{{ " `file.modification-time` TIMESTAMP_LTZ(3) NOT NULL
METADATA,\n" +}}
{{ " line STRING\n" +}}
{{ " ) WITH (\n" +}}
{{ " 'connector' = 'filesystem', \n" +}}
{{ " 'format' = 'raw'\n" +}}
{{ " );");}}
{{ tableEnv.executeSql("CREATE TABLE historical_raw_source\n" +}}
{{ " WITH (\n" +}}
{{ " 'path' =
'/Users/minmay/dev/mvillalobos/historical/data'\n" +}}
{{ " ) LIKE historical_raw_source_template;");}}{{ final
TableResult output =
tableEnv.from("historical_raw_source").select($("line")).execute();}}
{{ output.print();}}
{{ }}}
{{}}}
{{```}}
and this sample.csv file in the '/Users/minmay/dev/mvillalobos/historical/data'
directory:
{{```text}}
{{one}}
{{two}}
{{three}}
{{four}}
{{five}}
{{six}}
{{seven}}
{{eight}}
{{nine}}
{{ten}}
{{```}}
{{The print results are:}}
{{```text}}
{{+----+--------------------------------+}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{| +I | ten |}}
{{+----+--------------------------------+}}
{{10 rows in set}}
{{```}}
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